| Regimental number | 3663 |
| Place of birth | Leighland New South Wales |
| Religion | Church of England |
| Occupation | Farmer |
| Address | Normanhurst, Toodyay, Western Australia |
| Marital status | Single |
| Age at embarkation | 32 |
| Next of kin | Mother, Mrs R M Cook, Normanhurst, Toodyay, Western Australia |
| Enlistment date | 6 May 1917 |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, 33rd Reinforcement |
| AWM Embarkation Roll number | 10/15/4 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT Ormonde on 13 March 1918 |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 10th Light Horse Regiment |
| Fate | Returned to Australia 10 July 1919 |
| Family/military connections | Brother: 8801 Lance Corporal Albert Victor Willis COOK, 15th Field Company Engineers, returned to Australia, 8 May 1919. |